Recently changed to new phone Vivo Y17. Installed all the apps needed. Then I discovered an issue with Wunderlist.
Wunderlist widget keep showing “loading”, and I cannot change the list to be viewed.
The reminder doesn’t show notification in time.
Then I tried to migrate Wunderlist to Microsoft To-Do, and it has same issue as well.
Searching the solution and I finally get this page.
To summarise the solution, go to Settings > Permission Management > Autostart, then enable Wunderlist or Microsoft To-Do.